The Shadow Of The Object
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The Shadow of the Object
In The Shadow of the Object, Christopher Bollas integrates aspects of Freud’s theory of unconscious thinking with elements from the British Object Relations School. In doing so, he offers radical new visions of the scope of psychoanalysis and expands our understanding of the creativity of the unconscious mind and the aesthetics of human character. During our formative years, we are continually "impressed" by the object world. Most of this experience will never be consciously thought, and but it resides within us as assumed knowledge. Bollas has termed this "the unthought known", a phrase that has ramified through many realms of human exploration, including the worlds of letters, psychology and the arts. Aspects of the unthought known --the primary repressed unconscious --will emerge during a psychoanalysis, as a mood, the aesthetic of a dream, or in our relation to the self as other. Within the unique analytic relationship, it becomes possible, at least in part, to think the unthought -- an experience that has enormous transformative potential. Published here with a new preface by Christopher Bollas, The Shadow of the Object remains a classic of the psychoanalytic literature, written by a truly original thinker.
The Visual World of Shadows
How the perception of shadows, studied by vision scientists and visual artists, reveals the inner workings of the visual system. In The Visual World of Shadows, Roberto Casati and Patrick Cavanagh examine how the perception of shadows, as studied by vision scientists and visual artists, reveals the inner workings of the visual system. Shadows are at once a massive problem for vision—which must distinguish them from objects or material features of objects—and a resource, signaling the presence, location, shape, and size of objects. Casati and Cavanagh draw up an inventory of information retrievable from shadows, showing their amazing variety. They present an overview of the visual system, distinguishing between measurement and inference. They discuss the shadow mission, the work done by the visual brain to parse, and perhaps discard, the information from shadows; shadow ownership, the association of a shadow with the object that casts it; shadow labeling, the visual system's ability to tell shadows from nonshadows; and the shadow concept, our knowledge about shadows as a category. Casati and Cavanagh then apply the theoretical apparatus they have developed for shadows to other phenomena: illumination, reflection, and transparency. Finally, they examine the art of the shadow, paying tribute to artists' exploration of shadow, analyzing a series of artworks (reproduced in color) from a rich and fascinating art historical corpus.
Photo Forensics
The first comprehensive and detailed presentation of techniques for authenticating digital images. Photographs have been doctored since photography was invented. Dictators have erased people from photographs and from history. Politicians have manipulated photos for short-term political gain. Altering photographs in the predigital era required time-consuming darkroom work. Today, powerful and low-cost digital technology makes it relatively easy to alter digital images, and the resulting fakes are difficult to detect. The field of photo forensics—pioneered in Hany Farid's lab at Dartmouth College—restores some trust to photography. In this book, Farid describes techniques that can be used to authenticate photos. He provides the intuition and background as well as the mathematical and algorithmic details needed to understand, implement, and utilize a variety of photo forensic techniques. Farid traces the entire imaging pipeline. He begins with the physics and geometry of the interaction of light with the physical world, proceeds through the way light passes through a camera lens, the conversion of light to pixel values in the electronic sensor, the packaging of the pixel values into a digital image file, and the pixel-level artifacts introduced by photo-editing software. Modeling the path of light during image creation reveals physical, geometric, and statistical regularities that are disrupted during the creation of a fake. Various forensic techniques exploit these irregularities to detect traces of tampering. A chapter of case studies examines the authenticity of viral video and famously questionable photographs including “Golden Eagle Snatches Kid” and the Lee Harvey Oswald backyard photo.